The External, Musculoskeletal and Neuro-Anatomy of Sea Turtles
61
Subscapularis
Medial and posterior scapula
Medial process and shaft of the
humerus
Deltoid nerve
(brachial plexus)
Triceps brachii (triceps superficialis)
humeral head
Humerus
Via common tendon with scapular
head on proximal ulna
Superficial radial nerve
(brachial plexus)
Triceps brachii (triceps superficialis)
scapular head a
Scapula
Via common tendon with humeral
head on proximal ulna
Superficial radial nerve
(brachial plexus)
Extensor digitorum extensor radialis b
tractor radii
Radius and ulna
Dorsal carpals, metacarpals, and
proximal phalanges
Ulnar nerve
Pelvic Muscles
Rectus abdominis
Lateral pubis
Plastron
na
Puboischiofemoralis
externus
Ventral pubis, ischium, and membrane
covering the thyroid fenestrae
Minor trochanter
Obturator and tibial nerves
(sacral plexus)
Puboischiofemoralis internus a
Dorsolateral pubis, ilium, and the
sacral vertebrae
Major trochanter
Obturator and tibial nerves
(sacral plexus)
Flexor tibialis complex
Pubotibialis a
Flexor tibialis internus
Flexor tibialis externus
Pubic symphysis and lateral pubis
above and sacral vertebrae
Postsacral vertebrae dorsal head arises
from the ilium and ventral head from
posterior ischium
Tibia
Tibia, gastrocnemius muscle, skin, and
connective tissue of shank
Obturator and tibial nerves
(sacral plexus)
Obdurator and tibial nerves
(sacral plexus)
Adductor femoris
Lateral ischium
Posterior femoral shaft
Obturator nerve
(sacral plexus)
Ischiotrochantericus
Anterior pubis and pubic symphysis
Major trochanter
Obturator nerve
(sacral plexus)
Ambiens
Pubioischiadic ligament
Patellar tendon and anterior tibia
Peroneal, tibial, and branch of femoral
nerves (sacral plexus)
Femorotibialis
Dorsal and anteroventral femur
Patellar tendon
Peroneal and femoral nerves (sacral
plexus)
Iliotibialis
Dorsal ilium
Patellar tendon
Peroneal and femoral nerves (sacral
plexus)
(continued)
1123_C02.fm Page 61 Friday, November 15, 2002 11:16 AM